JP2546642B2 - Tape binding machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a binding machine for binding an object to be bound such as a bundle of wire rods with a tape.

(Prior Art) Conventionally, a tape tying machine has a table on which an object to be bound is placed, a movable arm for moving a crimping portion up and down, and a tape portion located below the table surface and to be attached to each other. It is composed of a crimping stand that holds the crimping part at the tip of the arm. When the tape is pressure-bonded, the tape is sandwiched between the pressure-bonding portions and the pressure-bonding base abuts against each other. At the same time, an electric heater provided in the pressure-bonding base is energized to heat the pressure-bonding surface to weld the tape. FIG. 9 shows an essential part of such a conventional binding machine.

(Problems to be Solved by the Invention) Just before the tape is crimped, the tape (T) is pulled in a state where the crimping portion (b) is close to the crimping base (a) as shown in FIG. However, if the distance (d) between the crimping base and the crimping portion is too small, the frictional force applied to the tape becomes large, and the tape cannot be pulled sufficiently. Therefore, a certain gap, for example, a gap of about 3 mm is required. Therefore, when bundling wire materials such as enamel wire or slender objects such as cords, as shown in Fig. 9, when the tape is pulled just before crimping, part (A ') of the bound object (A) is crimped. There is a problem that it may enter under the portion (b), that is, between the crimping portion and the crimping table, thereby causing a crimping mistake and damaging the objects to be bound.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tape tying machine which is designed to prevent a part of the material to be bound from getting under the crimping portion when the tape is pulled just before the tape crimping.

(Means for Solving the Problems) In the configuration that characterizes the binding machine using the tape of the present invention, since the tape is crimped on the side of the material to be bound, the crimping table under the crimping portion is movable up and down. In addition, when the tape is tightened immediately before crimping, a restraining member that directly abuts the side of the object to be bound on the tape crimping side is included. The restraining member preferably operates by an air cylinder or a spindle. Made by cam and cam follower interlocked with.

(Operation of the Means) The tape is pulled just before the tape is wound around the object to be bound and the tape is pressure-bonded, and at this time, the holding member abuts the side surface of the object to be bonded on the tape pressure-bonding side. Therefore, the object to be bound is restrained by the restraining member, so that a part of it is prevented from entering under the crimping portion, and the subject is properly bound.

(Example) Next, the Example of this invention is described with reference to drawings.
1 to 5 show an example of a binding machine according to the present invention. As shown in FIG. 3 and FIG. 4, the whole structure is constructed around the main shaft (1), and the intermediate shaft (5) is formed by the motor (2), its gear (3) and the gear (4) meshing with it. ) Is rotated, and the main shaft (1) is rotated by the gear (6) of the shaft and the gear (7) on the main shaft side. In this embodiment, a right-angled machine frame (8) is provided. The main shaft (1) is rotated by a pair of sprockets (9) and (10) and a chain (11), and the shaft (12) (fourth part) in the horizontal part of the upper part of the machine frame (8) is rotated.
(Fig.) And rotates the cam (15) via the bevel gears (13) and (14).

Reference numeral (16) is a crimping portion, and an arm (17) for moving the crimping portion up and down is pivotally fixed to the machine frame (8), and the engagement between the cam follower (18) and the cam (15) attached to the arm (17). The arm (17) pivots up and down depending on the combination. A vertical rod (20) is articulated to the arm (17) by a link (19), and a head (21) is provided at the lower end of the rod, and a crimp portion (16) and a tape cutter (not shown) are provided there. Is installed.
(22) is a guide for the rod (20).

Reference numeral (23) is a table on which the objects to be bound are placed, an opening (24) is provided at the position of the table under the head (21), and a crimping table (25) is provided there. As shown in FIG. 1, this binding machine is provided with a restraining member (26) that can come into contact with the side surface of the object to be bound (A) near the crimping table (25). The restraining member (26) is pivoted at a suitable position (27) below the table (23) and is actuated by a suitable drive, for example an air cylinder (28) as shown. When the restraining member (26) is actuated, as shown by the phantom line in FIG. 1, the restraining member (26) pivots upward through the opening (24) and abuts on the side surface of the object to be bound (A) on the tape crimping side. , Or to engage. In the abutted state, the portion with which the restraining member (26) comes into contact is at the same position as the side surface of the pressure bonding table (25) on the side of the object to be bound or at a position slightly protruding.

FIG. 2 exemplifies a preferable form of the restraining member (26). In this example, the restraining member (26) includes a pair of rods connected to each other by a shaft (29), and a joint member (30). Is connected to the air cylinder (28) via. In this case, as shown in FIG. 8, both sides of the tape (T) hung on the object to be bound can be restrained, and the balance can be restrained. Further, as is clear from FIG. 8, the restraining member (2
In 6), the side surface of the object to be bound is directly contacted and suppressed without using a tape. If desired, a slot may be provided in the table (23) at a position where the restraining member (26) passes, and the restraining member may be pivoted on the table surface through the slot.

Preferably, the crimping table (25) is movable up and down, so that as shown in FIG. 1, the crimping table (25) is supported by a member (31) which is pivoted at one end, and the spindle (1) is supported. A cam (32) mounted on the table and a cam follower (33) provided on the support member (31) move the table up and down through the opening (24). With such a configuration, the tape is pressure-bonded on the side of the object to be bound on the table,
There is no gap between the crimp part and the material to be bound. The crimping table (25) is equipped with an electric heater for welding the tape.

(34) is a reel for storing tapes, and as the tape (T), laminated paper, resin tape, or the like that adheres to each other by heat sealing is used. The tape unwound from the reel (34) is, as shown in FIG. 5, rollers (35), (36) attached to the head (21).
Guided by, the tip is held by the crimping table (25). The pivot stop plate piece (37) that supports these rollers is attached to the head (21) by an air cylinder (38) or the like as shown by an imaginary line.
By pivoting away from, the tape is pulled back because one roller (35) is an eccentric roller and holds the tape in that position. (39) is the pivot point of the plate (37).

During operation, the object to be bound is placed at the binding position on the table (23) so that the tape is wrapped around the tape stretched up and down.
Next, the crimping part (16) is lowered by the arm (17) with respect to the crimping table (25) therebelow, and immediately before the tape is crimped, the pressing member (26) is pivoted upward by the operation of the air cylinder (28). Then, the side of the object to be bound on the side where the tape is crimped is directly held down, and at the same time, the tape is pulled back by the operation of the air cylinder (38). And press the tape. Simultaneously with or immediately after crimping, the holding member (26) is lowered to the original position by the air cylinder (28), the tape is cut by the cutter, and the new tape end is sandwiched by the crimping table (25) and the crimping portion (16). Rises.

In the above embodiment, the restraining member (26) is operated by the air cylinder (28). However, as shown in FIG. 6, if desired, the cam (40) attached to the main shaft (1) and the cam follower engaged with it. The restraining member (26) may be pivoted via the link (42) by the (41). In this case, there is an advantage that the timing can be automatically set without using the detector.

Further, as shown in FIG. 7, a pressing member (43) that pivots upward from the opening (24) may be provided in order to press the side of the object to be bound opposite to the tape pressure side, and its operation is also possible. The cam (44) attached to the main shaft (1) and the cam follower (4
5) and the link (46) can be done via a spring (47). If such a pushing member (43) is provided, as shown in FIG. 8, the pressing member (43) and the restraining member (26) are restrained from both sides of the object to be bound (A), so that a more preferable binding is possible.

(Effect of the Invention) As described above, according to the present invention, the side surface of the object to be bound on the tape pressure-bonding side is suppressed by the pressing member immediately before the tape pressure-bonding. It is prevented from entering below. Therefore, there is no tying error due to a part of the material to be bound entering under the crimping portion, and no damage to the article occurs.

[Brief description of drawings]

FIG. 1 is a side view showing an essential part of an embodiment of the present invention, FIG. 2 is a perspective view of a part thereof, FIG. 3 is a perspective view showing the whole of the embodiment, and FIG. , FIG. 5 is a side view of the guide portion of the tape, FIG. 6 is a schematic view of the main part of another embodiment, and FIG.
FIG. 8 is a perspective view showing still another embodiment, FIG. 8 is a perspective view showing a state in which an object to be bound is restrained, and FIG. 9 is a schematic view showing a conventional technique. In the figure, 16: Crimping part, 17: Arm, 23: Table, 25: Crimping base, 26: Holding member, 28: Air cylinder, 40: Cam, 41: Cam follower

Claims (4)

(57) [Claims] 1. A table for placing an object to be bound, a movable arm for moving a crimping section up and down, and a crimping table under the crimping section for crimping a tape by abutting with the crimping section. In the binding machine using the tape including the tape, the crimping table is movable up and down in order to crimp the tape on the side of the object to be bound, and a part of the object to be bound is attached to the crimping part immediately before the tape is crimped. A tape tying machine, comprising: a restraining member that comes into direct contact with the side of the subject to be bonded on the tape pressure side in order to prevent it from entering below and to restrain the side surface of the subject to be bound. 2. The tape binding device according to claim 1, wherein the holding member comprises a pair of rod-shaped members for holding the tape to be bound on the object to be bound on both sides. 3. The tape binding device according to claim 1, wherein the holding member is operated by a cam attached to a main shaft for operating the arm of the binding device and a cam follower engaged with the cam. 4. The tape binding device according to claim 1, wherein the holding member is operated by an air cylinder.